Killing Two Birds with One Stone

I said to the kids the other day, "Well, we killed two birds with one stone!" Oliver looked at me quizzically.

"Do you know what that means?" I asked him.

"No."

So I explained that it meant to accomplish two things at once, by one action.

"Oh. I wonder how else you can kill two birds at once?" he wondered.

And hence, I was treated to all the ways he could think of to literally kill two birds at once. Dynamite, double barrel shotgun, set the tree on fire, . . . . Boys.